diff --git a/adb/fdevent.cpp b/adb/fdevent.cpp
index 5cd498831851598b625689453b969234aec107c3..a8abade7850725c4200e6ca0f1b3c99080a7f71c 100644
--- a/adb/fdevent.cpp
+++ b/adb/fdevent.cpp
@@ -234,7 +234,7 @@ static void fdevent_process()
 
 #else /* USE_SELECT */
 
-#ifdef HAVE_WINSOCK
+#if defined(_WIN32)
 #include <winsock2.h>
 #else
 #include <sys/select.h>
@@ -617,7 +617,7 @@ void fdevent_install(fdevent *fde, int fd, fd_func func, void *arg)
     fde->func = func;
     fde->arg = arg;
 
-#ifndef HAVE_WINSOCK
+#if !defined(_WIN32)
     fcntl(fd, F_SETFL, O_NONBLOCK);
 #endif
     fdevent_register(fde);
diff --git a/adb/services.cpp b/adb/services.cpp
index 82efb1c043ad824d86a88dead2f3315a5d3574d4..708ef42f6e15525a11cf1a29979ddc68ab7b90c1 100644
--- a/adb/services.cpp
+++ b/adb/services.cpp
@@ -443,7 +443,7 @@ int service_to_fd(const char *name)
             return -1;
 #endif
         }
-#ifndef HAVE_WINSOCK   /* winsock doesn't implement unix domain sockets */
+#if !defined(_WIN32)   /* winsock doesn't implement unix domain sockets */
     } else if(!strncmp(name, "local:", 6)) {
         ret = socket_local_client(name + 6,
                 ANDROID_SOCKET_NAMESPACE_RESERVED, SOCK_STREAM);
diff --git a/include/cutils/sockets.h b/include/cutils/sockets.h
index 07d1351a9e705101cbd3882ee60a8484a186a94d..2d3c743c00702ea555cca5bd453a5a062a794614 100644
--- a/include/cutils/sockets.h
+++ b/include/cutils/sockets.h
@@ -23,7 +23,7 @@
 #include <string.h>
 #include <stdbool.h>
 
-#ifdef HAVE_WINSOCK
+#if defined(_WIN32)
 #include <winsock2.h>
 typedef int  socklen_t;
 #else
diff --git a/include/utils/ByteOrder.h b/include/utils/ByteOrder.h
index baa3a83dddfc474ff1c7bd15b21542ebc59f470d..44ea13df8e146baeb5879b73c3edac0b162b2936 100644
--- a/include/utils/ByteOrder.h
+++ b/include/utils/ByteOrder.h
@@ -21,7 +21,7 @@
 
 #include <stdint.h>
 #include <sys/types.h>
-#ifdef HAVE_WINSOCK
+#if defined(_WIN32)
 #include <winsock2.h>
 #else
 #include <netinet/in.h>
diff --git a/include/utils/FileMap.h b/include/utils/FileMap.h
index f70fc927e4ca366af6b70541d2fa94fd6cec76c4..afd7bfd7bd71aff20cb649505db8ac73e3920e7a 100644
--- a/include/utils/FileMap.h
+++ b/include/utils/FileMap.h
@@ -26,7 +26,7 @@
 
 #if defined(__MINGW32__)
 // Ensure that we always pull in winsock2.h before windows.h
-#ifdef HAVE_WINSOCK
+#if defined(_WIN32)
 #include <winsock2.h>
 #endif
 #include <windows.h>
diff --git a/libcutils/record_stream.c b/libcutils/record_stream.c
index 69949047c39741a0510dd23a577bb017fcef04d3..2bc4226edbc94b8332e1bd1aed0975e91228ff3d 100644
--- a/libcutils/record_stream.c
+++ b/libcutils/record_stream.c
@@ -22,7 +22,7 @@
 #include <cutils/record_stream.h>
 #include <string.h>
 #include <stdint.h>
-#ifdef HAVE_WINSOCK
+#if defined(_WIN32)
 #include <winsock2.h>   /* for ntohl */
 #else
 #include <netinet/in.h>
diff --git a/libcutils/socket_inaddr_any_server.c b/libcutils/socket_inaddr_any_server.c
index 6c849de771d62ca2e23ee1ebf51d2adf5c5d2a25..7f0ccb8e9cd87829005fe1007bea511fd1e6c1e0 100644
--- a/libcutils/socket_inaddr_any_server.c
+++ b/libcutils/socket_inaddr_any_server.c
@@ -20,7 +20,7 @@
 #include <string.h>
 #include <unistd.h>
 
-#ifndef HAVE_WINSOCK
+#if !defined(_WIN32)
 #include <sys/socket.h>
 #include <sys/select.h>
 #include <sys/types.h>
diff --git a/libcutils/socket_local_client.c b/libcutils/socket_local_client.c
index 7b42daaeec2bc5cca0eba6ea006553285c3aba8e..252614625fa6107cc6291e772c7c4e963141e9ef 100644
--- a/libcutils/socket_local_client.c
+++ b/libcutils/socket_local_client.c
@@ -22,7 +22,7 @@
 
 #include <cutils/sockets.h>
 
-#ifdef HAVE_WINSOCK
+#if defined(_WIN32)
 
 int socket_local_client(const char *name, int namespaceId, int type)
 {
@@ -30,7 +30,7 @@ int socket_local_client(const char *name, int namespaceId, int type)
     return -1;
 }
 
-#else /* !HAVE_WINSOCK */
+#else /* !_WIN32 */
 
 #include <sys/socket.h>
 #include <sys/un.h>
@@ -165,4 +165,4 @@ int socket_local_client(const char *name, int namespaceId, int type)
     return s;
 }
 
-#endif /* !HAVE_WINSOCK */
+#endif /* !_WIN32 */
diff --git a/libcutils/socket_local_server.c b/libcutils/socket_local_server.c
index 60eb86b8320ed0025819d2d793ce9fcf933cde0f..c9acdad3ef64a61df5667c890596457f327788bf 100644
--- a/libcutils/socket_local_server.c
+++ b/libcutils/socket_local_server.c
@@ -23,7 +23,7 @@
 #include <errno.h>
 #include <stddef.h>
 
-#ifdef HAVE_WINSOCK
+#if defined(_WIN32)
 
 int socket_local_server(const char *name, int namespaceId, int type)
 {
@@ -31,7 +31,7 @@ int socket_local_server(const char *name, int namespaceId, int type)
     return -1;
 }
 
-#else /* !HAVE_WINSOCK */
+#else /* !_WIN32 */
 
 #include <sys/socket.h>
 #include <sys/un.h>
@@ -123,4 +123,4 @@ int socket_local_server(const char *name, int namespace, int type)
     return s;
 }
 
-#endif /* !HAVE_WINSOCK */
+#endif /* !_WIN32 */
diff --git a/libcutils/socket_loopback_client.c b/libcutils/socket_loopback_client.c
index 9aed7b7ce4bd84fe1d7951fbdc7594bcabdc9963..e14cffbe97b4e8f8262b210372d88a161e095841 100644
--- a/libcutils/socket_loopback_client.c
+++ b/libcutils/socket_loopback_client.c
@@ -20,7 +20,7 @@
 #include <string.h>
 #include <unistd.h>
 
-#ifndef HAVE_WINSOCK
+#if !defined(_WIN32)
 #include <sys/socket.h>
 #include <sys/select.h>
 #include <sys/types.h>
diff --git a/libcutils/socket_loopback_server.c b/libcutils/socket_loopback_server.c
index 71afce70ffac5a7504820e7303c5cd767dc1c480..b600e347ee718417e169ab1a775f2c3b5e72919e 100644
--- a/libcutils/socket_loopback_server.c
+++ b/libcutils/socket_loopback_server.c
@@ -22,7 +22,7 @@
 
 #define LISTEN_BACKLOG 4
 
-#ifndef HAVE_WINSOCK
+#if !defined(_WIN32)
 #include <sys/socket.h>
 #include <sys/select.h>
 #include <sys/types.h>
diff --git a/liblog/log_read.c b/liblog/log_read.c
index 9c4af30d0a08180736b8556218aad2fec5fea030..cfc8a7aca929086e56fd2342618affdcc751db3a 100644
--- a/liblog/log_read.c
+++ b/liblog/log_read.c
@@ -37,7 +37,7 @@
 /* branchless on many architectures. */
 #define min(x,y) ((y) ^ (((x) ^ (y)) & -((x) < (y))))
 
-#if (defined(USE_MINGW) || defined(HAVE_WINSOCK))
+#if defined(_WIN32)
 #define WEAK static
 #else
 #define WEAK __attribute__((weak))
@@ -48,7 +48,7 @@
 
 /* Private copy of ../libcutils/socket_local_client.c prevent library loops */
 
-#ifdef HAVE_WINSOCK
+#if defined(_WIN32)
 
 int WEAK socket_local_client(const char *name, int namespaceId, int type)
 {
@@ -56,7 +56,7 @@ int WEAK socket_local_client(const char *name, int namespaceId, int type)
     return -ENOSYS;
 }
 
-#else /* !HAVE_WINSOCK */
+#else /* !_WIN32 */
 
 #include <sys/socket.h>
 #include <sys/un.h>
@@ -193,7 +193,7 @@ int WEAK socket_local_client(const char *name, int namespaceId, int type)
     return s;
 }
 
-#endif /* !HAVE_WINSOCK */
+#endif /* !_WIN32 */
 /* End of ../libcutils/socket_local_client.c */
 
 #define logger_for_each(logger, logger_list) \
diff --git a/libutils/Unicode.cpp b/libutils/Unicode.cpp
index fb876c91f0909d396497306ba953f15abb84af88..6f4b7217608d417d3391fb7701fef37c31ac99d4 100644
--- a/libutils/Unicode.cpp
+++ b/libutils/Unicode.cpp
@@ -18,7 +18,7 @@
 
 #include <stddef.h>
 
-#ifdef HAVE_WINSOCK
+#if defined(_WIN32)
 # undef  nhtol
 # undef  htonl
 # undef  nhtos